| Frank Eugene Dr. Georg Hirth [Camera Work, no. 31, pl. 07] 1910 (photogravure) Photogravure 6 3/4 × 4 3/4 ins (17.1 × 12.1 cm) (image) 8 1/8 × 5 1/4 ins (20.6 × 13.3 cm) (sheet) Philadelphia Museum of Art From the Collection of Dorothy Norman, 1973, Accession Number: 1973-267-147 LL/71552
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